Portable winch



FIG. 1 is a perspective view of a design of a portable winch;

FIG. 2 is a first side elevation view of the portable winch of FIG. 1;

FIG. 3 is a second side elevation view of the portable winch of FIG. 1;

FIG. 4 is a front elevation view of the portable winch of FIG. 1;

FIG. 5 is a rear elevation view of the portable winch of FIG. 1;

FIG. 6 is a top plan view of the portable winch of FIG. 1; and,

FIG. 7 is a bottom plan view of the portable winch of FIG. 1.

The broken lines shown in the figures depict environmental subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a portable winch, as shown and described. 